Fan Controller Without Time-Delay Relay - Webasto Thermo Top Evo Installation Documentation

Audi A6 / A6- Avant / Audi A7 Sportback

Fan Controller Without Time-Delay Relay

Webasto
X2
F2 F1
4
rt
rt/sw
4² 0,5²
br
0,5²
br
3
0,5²
X10
Webasto components
HG TT-Evo heater
X1 6-pin heater connector T20c
X2 2-pin heater connector SC1
F1 Fuse 20A
F2 Replace 30A with 1 A
fuse.
X10 4-pin connector of heat-
er control
2
4
1
3 5
1
Ident. No.: 1317500E_EN
HG
1 2 2 5
X1
2
gn/ws
0,75²
ge
0,5²
5
! 1
Vehicle components
J255 A/C control unit
20-pin connector J255
Fuse
SC2 Fuse
J126 Fan unit
T4cb 4-pin J126 connector
2
14
15
1
Status: 19.03.2015
Audi
J255
10 20 1 19
T20c
T4cb
4
gn/ws
J126
0,75²
Colours and symbols
rt
sw
ge
gn
ws
br
Wiring colours may vary.
Route green/white (gn/ws) wire of J255
T20c/10 to the A/C control unit.
1
1 Solder wire terminator
2 Wiring harness of heater
Green/white (gn/ws) wire of J255
1
T20c/10
2 Green/white (gn/ws) wire from X1/5 of
heater wiring harness
1
Red/black (rt/sw) wire from X10 of heater
3
wiring harness
4 Red (rt) wire from F2 of heater wiring har-
ness
Brown (br) wire from X2/2 of heater wir-
5
ing harness (insulate and tie back)
Connection to 20-pin T20c connector 1 of A/C
control unit, pin 10. Crimp microtimer onto
green/white (gn/ws) wire
free pin 10 socket.
1 T20c connector dismantled
30
15
SC1 SC2
3 1
M
31
red
black
yellow
green
white
brown
Insulate wire ends and
tie back
and insert into
1
© Webasto Thermo & Comfort SE
Wiring dia-
gram
Legend
Preparing
wiring har-
ness of
passenger
compart-
ment
Connec-
tion of A/C
control unit
9